Cnockaert J C
Eur J Appl Physiol Occup Physiol. 1978 Sep 15;39(3):181-9. doi: 10.1007/BF00421345.
The potential elastic energy stored and used by the flexors is compared to that of the elbow extensors in man. This comparison is made during a series of isolated and to-and-fro movements. The integrated EMG-work relationships are established for the isolated movements of flexion and extension and for the to-and-fro movements. For a same integrated EMG value: 1. The work done by the flexors or the extensors during to-and-fro movements is superior to that done during isolated movements. 2. In comparison to isolated movements the energy saved in to-and-fro movements is greater in the case of the extensors than in the case of the flexors. It appears that: 1. The extra work supplied during to-and-fro movements comes only from the extra positive work done after stretching. 2. The best performance of the extensors can be explained by the comparative study on the one hand of the potential elastic energy-force relationships and on the other hand the lever arm-elbow angle relationships for the Equivalent Flexor Muscle and the Equivalent Extensor Muscle.
对人类屈肌储存和使用的潜在弹性能量与肘伸肌的潜在弹性能量进行了比较。这种比较是在一系列孤立的来回运动中进行的。针对屈肌和伸肌的孤立运动以及来回运动，建立了肌电图积分与功的关系。对于相同的肌电图积分值：1. 在来回运动中屈肌或伸肌所做的功优于在孤立运动中所做的功。2. 与孤立运动相比，在来回运动中伸肌节省的能量比屈肌更多。似乎：1. 来回运动中额外提供的功仅来自拉伸后所做的额外正功。2. 伸肌的最佳性能可以通过一方面对潜在弹性能量与力的关系，另一方面对等效屈肌和等效伸肌的力臂与肘角度关系的比较研究来解释。
